/Engine/Source/Runtime/UMG/Public/Animation/MovieSceneWidgetMaterialTrack.h
virtual void ExtendEntityImpl ( [UMovieSceneParameterSection](API\Runtime\MovieSceneTracks\Sections\UMovieSceneParameterSection) * Section, [UMovieSceneEntitySystemLinker](API\Runtime\MovieScene\EntitySystem\UMovieSceneEntitySystemLinker) * EntityLinker, const [UE::MovieScene::FEntityImportParams](API\Runtime\MovieScene\EntitySystem\FEntityImportParams) & Params, [UE::MovieScene::FImportedEntity](API\Runtime\MovieScene\EntitySystem\FImportedEntity) * OutImportedEntity )